Patents by Inventor Ashis Kumar Saha

Ashis Kumar Saha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100168080
    Abstract: The present invention relates to novel morpholine, oxazapane and piperidine derivatives that act as ligands for CC chemokine receptors, such as CCR1. The invention also relates to methods of preparing the compounds, compositions containing the compounds, and to methods of treatment using the compounds.
    Type: Application
    Filed: December 16, 2009
    Publication date: July 1, 2010
    Inventors: Uttam KHAMRAI, Sumit Kumar Karak, Matthew Ronsheim, Ashis Kumar Saha
  • Patent number: 7592356
    Abstract: a prodrug, N-oxide, addition salt, quaternary amine or stereochemically isomeric form thereof, wherein L1 and L2 are R1—Y— wherein each (R1—Y)— substituent is defined independently of the other; Y is C1-4alkanediyl, C2-4alkenediyl, C2-4alkynediyl, C(?O), or a direct bond; R1 is hydrogen, cyano, aryl or a substituted or unsubstituted C1-14heterocycle; ?Z1—Z2?Z3— represents a radical of formula ?N—N?CH— (a-1), ?N—CH?N— (a-2), ?CH—N?N— (a-3); X is SO2, (CH2), wherein n is 1 to 4, C(?O), C(?S), or a direct bond; R2 is aryl, C3-7cycloalkyl, C3-7cycloalkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalkyl, hydroxycarbonyl, C1-6alkyloxycarbonyl, hydroxyC1-6alkyl, hydroxyC1-6alkyloxy, hydroxyC1-6alkylthio and arylC1-6alkylthio, C1-12alkyl or C1-12alkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalkyl
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: September 22, 2009
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Ashis Kumar Saha, David William End, Bart Lieven Daniel De Corte, Henry Joseph Breslin, Li Liu
  • Patent number: 7511061
    Abstract: A prodrug, N-oxide, addition salt, quaternary amine or stereochemically isomeric form thereof, wherein L1 and L2 are R1—Y— wherein each (R1—Y)— substituent is defined independently of the other; Y is C1-4alkanediyl, C2-4alkenediyl, C2-4alkynediyl, C(?O), or a direct bond; R1 is hydrogen, cyano, aryl or a substituted or unsubstituted C1-14heterocycle; =Z1-Z2=Z3- represents a radical of formula ?N—N?CH— (a-1), ?N—CH?N— (a-2), ?CH—N?N— (a-3); X is SO2, (CH2)n wherein n is 1 to 4, C(?O), C(?S), or a direct bond; R2 is aryl, C3-7cycloalkyl, C3-7cycloalkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalkyl, hydroxycarbonyl, C1-6alkyloxycarbonyl, hydroxyC1-6alkyl, hydroxyC1-6alkyloxy, hydroxyC1-6alkylthio and arylC1-6alkylthio, C1-12alkyl or C1-12alkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalkyl, hy
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 31, 2009
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Ashis Kumar Saha, David William End, Bart Lieven Daniel De Corte, Henry Joseph Breslin, Li Liu
  • Patent number: 7173040
    Abstract: This invention comprises the compounds of formula (I): wherein r, s, t, Y1–Y2, R1, R2, R3, R4, R5, R6 and R7 have defined meanings, having farnesyl transferase inhibiting activity; their preparation, compositions containing them and their use as a medicine.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: February 6, 2007
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Patrick René Angibaud, Marc Gaston Venet, Ashis Kumar Saha, Laurence Anne Mevellec
  • Patent number: 7049324
    Abstract: a prodrug, N-oxide, addition salt, quaternary amine or stereochemically isomeric form thereof, wherein L1 and L2 are R1—Y— wherein each (R1—Y)— substituent is defined independently of the other; Y is C1-4alkanediyl, C2-4alkenediyl, C2-4alkynediyl, C(?O), or a direct bond; R1 is hydrogen, cyano, aryl or a substituted or unsubstituted C1-14heterocycle; ?Z1—Z2?Z3— represents a radical of formula ?N—N?CH— (a-1), ?N—CH?N— (a-2), ?CH—N?N— (a-3); X is SO2, (CH2)n wherein n is 1 to 4, C(?O), C(?S), or a direct bond, R2 is aryl, C3-7cycloalkyl, C3-7cycloalkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalkyl, hydroxycarbonyl, C1-6alkyloxycarbonyl, hydroxyC1-6alkyl, hydroxyC1-6alkyloxy, hydroxyC1-6alkylthio and arylC1-6alkylthio, C1-12alkyl or C1-12alkyl substituted with one or more substituents independently selected from hydroxy, aryl, aryloxy, a substituted or unsubstituted C1-14heterocycle, C3-7cycloalky
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: May 23, 2006
    Inventors: Ashis Kumar Saha, David William End, Bart Lieven Daniel De Corte, Henry Joseph Breslin, Li Liu
  • Publication number: 20040048882
    Abstract: This invention comprises the novel compounds of formula (I) wherein r, s, t, Y1—Y2, R1, R2, R3, R4, R5, R6 and R7 have defined meanings, having farnesyl transferase inhibiting activity; their preparation, compositions containing them and their use as a medicine.
    Type: Application
    Filed: March 24, 2003
    Publication date: March 11, 2004
    Inventors: Patrick Rene Angibaud, Marc Gaston Venet, Ashis Kumar Saha, Laurence Anne Mevellec
  • Patent number: 6248870
    Abstract: A method for diagnostic imaging a site in a patient. The method involves the use of an immunoreactive group which is linked to an unsymmetrical oligo-2,6-pyrimidine complexing agent.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: June 19, 2001
    Assignee: Nycomed Imaging AS
    Inventors: Daniel J. Delecki, Ashis Kumar Saha, Robert A. Snow
  • Patent number: 5892024
    Abstract: Disclosed are novel bifunctional nucleoside analogs and oligonucleosides of 3-4 bases (trimers and tetramers) and longer containing at least two consecutive internucleoside linkages of two carbon-one nitrogen atom or two carbon-one oxygen atom (3'-NCC-5', 3'-CNC-5', 3'-OCC-5') internucleoside linkages. The bifunctional nucleosides are useful for preparing the trimers and tetramers, which, in turn, are useful, together with the nucleosides, in preparing oligonucleosides as well as chimeric oligonucleotide analogs, preferably antisense oligonucleosides and oligonucleotide analogs, of 6 to about 60 bases having at least two consecutive internucleoside linkages of two carbon atoms and one nitrogen atom or 2 carbon atoms and one oxygen atom in the oligonucleoside backbone.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: April 6, 1999
    Assignee: Sanofi
    Inventors: Prasad Venkata Chala Chaturvedula, Ashis Kumar Saha
  • Patent number: 5817774
    Abstract: Described are novel, unsymmetrical oligo-2,6-pyridine complexing agents. Also described are metal chelates and targeting immunoreagents containing such completing agents as well as diagnostic and therapeutic compositions containing such immunoreagents and diagnostic and therapeutic methods of using the immunoreagents.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: October 6, 1998
    Assignee: Sterling Winthrop Incorporation
    Inventors: Daniel J. Delecki, Ashis Kumar Saha, Robert A. Snow